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March 30, 2017

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To push a 25.0kg crate up a frictionless surface incline angled at 25 degrees to the horizontal, a worker exerts a force of magnitude 209N parallel to the incline. As the crate slides 1.50m, how much work is done on they crate by (a) the worker's applied force, (b) the gravitational force on the crate, and (c) the normal force exerted by the incline on the crate? (d) what is the total work done?

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  • physics - ,

    work: 209*1.5 joules total
    normal force=mgSin25
    gravitational force on crate=mg
    workers force=209

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